40117068128 has 12 divisors (see below), whose sum is σ = 78980477940. Its totient is φ = 20058534048.

The previous prime is 40117068097. The next prime is 40117068149. The reversal of 40117068128 is 82186071104.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 40117068091 and 40117068100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 626829158 + ... + 626829221.

It is an arithmetic number, because the mean of its divisors is an integer number (6581706495).

Almost surely, 2^40117068128 is an apocalyptic number.

It is an amenable number.

40117068128 is a deficient number, since it is larger than the sum of its proper divisors (38863409812).

40117068128 is a wasteful number, since it uses less digits than its factorization.

40117068128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253658389 (or 1253658381 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 38.

The spelling of 40117068128 in words is "forty billion, one hundred seventeen million, sixty-eight thousand, one hundred twenty-eight".